A tweet from Dern’s account went out today noting, “Can’t keep a good man down. Back at work on #Black Monday.”

The 82-year-old Dern, who recently finished filming on Quentin Tarantino’s Once Upon a Time In Hollywoodin the role of rancher George Spahn, was hospitalized briefly in October following the jogging accident.

In addition to Tarantino’s Charles Manson-era Once Upon a Time, Dern co-stars in Focus Features’ The Mustang, set for a premiere at Sundance.